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Space optical communication can transmit at a high speed with great communication quality. With the developing configuration of the satellite and the optical ground station, people start to pay more attention to the atmosphere channel. It is obvious that wind is an important factor of the atmospheric turbulence. Besides, an avalanche photodiode (APD) is necessary for a space downlink optical communication...
Bit error rate (BER) performances of DPSK are researched for space uplink optical communication system. Considering further phase fluctuation effect based on the traditional atmospheric turbulence model, BER performance versus transmission power, zenith angle, frequency deviation, divergence angle and transmission diameter are discussed for different wavelengths. Simulations, especially, indicate...
Bit-error rate (BER) performance of on-off keying (OOK), differential phase-shift keying (DPSK), and differential quadrature phase-shift keying (QDPSK) are discussed under effect of beam wander, scintillation, and detector noise in space laser uplink communication system. Actually, DPSK performs better than OOK and QDPSK when the beam wader is considered. DPSK performs approximately 20dB better than...
The Costas loop is the key technique of synchronous demodulation in the next generation of satellite optical communication systems. To better understand the Costas loop, the relationship between phase deviation of the Costas loop and bit error rate (BER) performance of a binary-phase-shift keying (BPSK) space uplink optical communication system is achieved. Furthermore, the BER performance versus...
As the technique of space optical communication is developing, the requirement of higher data rate has attracted more attention. Currently, low data rate has been successfully applied in communication system. The next generation for space optical system have goal of higher data rate of 10Gb/s. In this paper, bit error rate (BER) performance on minimum shift keying (MSK) scheme at 10Gb/s data rate...
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